WinUI project added to DateCalculator MVVM solution

src/NET_8/DateCalculator/DateCalculator.Forms/Views/DatePage.xaml

@@ -17,6 +17,7 @@
         <vm:DateViewModel />
     </ContentPage.BindingContext>
     <ContentPage.Resources>
+        <xct:DateTimeOffsetConverter x:Key="DateTimeOffsetConverter" />
         <xct:InvertedBoolConverter x:Key="InverseBoolConverter" />
         <xct:IntToBoolConverter x:Key="IntToBoolConverter" />
     </ContentPage.Resources>
@@ -37,7 +38,7 @@
                 <Label
                     Style="{StaticResource Caption}"
                     Text="From" />
-                <DatePicker Date="{Binding StartDate}">
+                <DatePicker Date="{Binding StartDate, Converter={StaticResource DateTimeOffsetConverter}}">
                     <DatePicker.Behaviors>
                         <xct:EventToCommandBehavior
                             Command="{Binding DateDiffCommand}"
@@ -51,7 +52,7 @@
                 <Label
                     Style="{StaticResource Caption}"
                     Text="To" />
-                <DatePicker Date="{Binding EndDate}">
+                <DatePicker Date="{Binding EndDate, Converter={StaticResource DateTimeOffsetConverter}}">
                     <DatePicker.Behaviors>
                         <xct:EventToCommandBehavior
                             Command="{Binding DateDiffCommand}"

src/NET_8/DateCalculator/DateCalculator.Maui/Views/DatePage.xaml

@@ -15,6 +15,7 @@
         <vm:DateViewModel />
     </ContentPage.BindingContext>
     <pages:MauiPage.Resources>
+        <mct:DateTimeOffsetConverter x:Key="DateTimeOffsetConverter" />
         <mct:InvertedBoolConverter x:Key="InverseBoolConverter" />
         <!--<mct:IntToBoolConverter x:Key="IntToBoolConverter" />-->
         <!--<converters:CheckedChangedEventArgsConverter x:Key="CheckedChangedEventArgsConverter" />-->
@@ -39,7 +40,7 @@
                     <Label
                         Style="{StaticResource Caption}"
                         Text="From" />
-                    <DatePicker Date="{Binding StartDate}">
+                    <DatePicker Date="{Binding StartDate, Converter={StaticResource DateTimeOffsetConverter}}">
                         <DatePicker.Behaviors>
                             <mct:EventToCommandBehavior
                                 Command="{Binding DateDiffCommand}"
@@ -53,7 +54,7 @@
                     <Label
                         Style="{StaticResource Caption}"
                         Text="To" />
-                    <DatePicker Date="{Binding EndDate}">
+                    <DatePicker Date="{Binding EndDate, Converter={StaticResource DateTimeOffsetConverter}}">
                         <DatePicker.Behaviors>
                             <mct:EventToCommandBehavior
                                 Command="{Binding DateDiffCommand}"

src/NET_8/DateCalculator/DateCalculator.Shared/ViewModels/DateViewModel.cs

@@ -3,17 +3,22 @@
 using DateCalculator.Extensions;
 using DateCalculator.Helpers;
 using DateCalculator.Models;
+using System.ComponentModel;
 using VijayAnand.Toolkit.ObjectModel;
 
 namespace DateCalculator.ViewModels
 {
     public partial class DateViewModel : BaseViewModel
     {
         [ObservableProperty]
-        private DateTime startDate = DateTime.Today;
+        [NotifyPropertyChangedFor(nameof(StartDate1))]
+        //[TypeConverter(typeof(DateTimeOffsetConverter))]
+        private DateTimeOffset startDate = DateTime.Today;
 
         [ObservableProperty]
-        private DateTime endDate = DateTime.Today;
+        [NotifyPropertyChangedFor(nameof(EndDate1))]
+        //[TypeConverter(typeof(DateTimeOffsetConverter))]
+        private DateTimeOffset endDate = DateTime.Today;
 
         [ObservableProperty]
         [NotifyPropertyChangedFor(nameof(DiffModeInverse))]
@@ -55,31 +60,43 @@ public DateViewModel()
             FindTheDate();
         }
 
-        public IReadOnlyList<string> Options { get;  } = ["Difference between dates", "Add or subtract days"];
+        public IReadOnlyList<string> Options { get; } = ["Difference between dates", "Add or subtract days"];
 
         public IReadOnlyList<int> Range { get; } = Enumerable.Range(0, 1000).ToList();
 
-#region For WinForms
+        #region For WinForms
+        public DateTime StartDate1
+        {
+            get => StartDate.Date;
+            set => StartDate = value;
+        }
+
+        public DateTime EndDate1
+        {
+            get => EndDate.Date;
+            set => EndDate = value;
+        }
+
         public IReadOnlyList<int> YearRange { get; } = Enumerable.Range(0, 1000).ToList();
 
         public IReadOnlyList<int> MonthRange { get; } = Enumerable.Range(0, 1000).ToList();
 
         public IReadOnlyList<int> WeekRange { get; } = Enumerable.Range(0, 1000).ToList();
 
         public IReadOnlyList<int> DayRange { get; } = Enumerable.Range(0, 1000).ToList();
-#endregion
+        #endregion
 
         public bool DiffModeInverse => !DiffMode;
 
         // While using classic MVVM
         /*
-        public DateTime StartDate
+        public DateTimeOffset StartDate
         {
             get => startDate;
             set => SetProperty(ref startDate, value);
         }
 
-        public DateTime EndDate
+        public DateTimeOffset EndDate
         {
             get => endDate;
             set => SetProperty(ref endDate, value);
@@ -152,7 +169,6 @@ public int SelectedDay
             get => selectedDay;
             set => SetProperty(ref selectedDay, value, onChanged: FindTheDate);
         }
-
         public string ResultCaption
         {
             get => resultCaption;
@@ -196,9 +212,9 @@ partial void OnDiffModeChanged(bool value)
 
         partial void OnSelectedOptionChanged(int value) => DiffMode = value == 0;
 
-        partial void OnStartDateChanged(DateTime value) => FindTheDate();
+        partial void OnStartDateChanged(DateTimeOffset value) => FindTheDate();
 
-        partial void OnEndDateChanged(DateTime value) => FindTheDate();
+        partial void OnEndDateChanged(DateTimeOffset value) => FindTheDate();
 
         partial void OnSelectedModeChanged(string? value)
         {
@@ -233,17 +249,18 @@ private void FindTheDate()
                     dtEnd = StartDate;
                 }
 
-                DiffResult = Utility.DateDiff(dtStart, dtEnd);
-                DiffInDays = ((int)(dtEnd - dtStart).TotalDays).InWords(TimeUnit.Day);
+                DiffResult = Utility.DateDiff(dtStart.Date, dtEnd.Date);
+                DiffInDays = ((int)(dtEnd.Date - dtStart.Date).TotalDays).InWords(TimeUnit.Day);
             }
             else
             {
                 int factor = AddMode ? 1 : -1;
-                DiffResult = StartDate.AddYears(SelectedYear * factor)
-                                      .AddMonths(SelectedMonth * factor)
-                                      .AddWeeks(SelectedWeek * factor)
-                                      .AddDays(SelectedDay * factor)
-                                      .ToLongDateString();
+                DiffResult = StartDate.Date
+                    .AddYears(SelectedYear * factor)
+                    .AddMonths(SelectedMonth * factor)
+                    .AddWeeks(SelectedWeek * factor)
+                    .AddDays(SelectedDay * factor)
+                    .ToLongDateString();
                 DiffInDays = string.Empty;
             }
         }

src/NET_8/DateCalculator/DateCalculator.WinForms/Views/DateForm.cs

@@ -17,9 +17,9 @@ private void ConfigureDataBindings()
 		cboOptions.DataBindings.Add(new Binding(nameof(ComboBox.DataSource), dateViewModelBindingSource, nameof(DateViewModel.Options), true));
 		cboOptions.DataBindings.Add(new Binding(nameof(ComboBox.SelectedIndex), dateViewModelBindingSource, nameof(DateViewModel.SelectedOption), true, DataSourceUpdateMode.OnPropertyChanged));
 		// dtpStartDate
-		dtpStartDate.DataBindings.Add(new Binding(nameof(DateTimePicker.Value), dateViewModelBindingSource, nameof(DateViewModel.StartDate), true, DataSourceUpdateMode.OnPropertyChanged));
+		dtpStartDate.DataBindings.Add(new Binding(nameof(DateTimePicker.Value), dateViewModelBindingSource, nameof(DateViewModel.StartDate1), true, DataSourceUpdateMode.OnPropertyChanged));
 		// dtpEndDate
-		dtpEndDate.DataBindings.Add(new Binding(nameof(DateTimePicker.Value), dateViewModelBindingSource, nameof(DateViewModel.EndDate), true, DataSourceUpdateMode.OnPropertyChanged));
+		dtpEndDate.DataBindings.Add(new Binding(nameof(DateTimePicker.Value), dateViewModelBindingSource, nameof(DateViewModel.EndDate1), true, DataSourceUpdateMode.OnPropertyChanged));
 		dtpEndDate.DataBindings.Add(new Binding(nameof(Visible), dateViewModelBindingSource, nameof(DateViewModel.DiffMode), true, DataSourceUpdateMode.OnPropertyChanged));
 		// addSubPanel
 		addSubPanel.DataBindings.Add(new Binding(nameof(Visible), dateViewModelBindingSource, nameof(DateViewModel.DiffModeInverse), true, DataSourceUpdateMode.OnPropertyChanged));

src/NET_8/DateCalculator/DateCalculator.WinUI/App.xaml

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<Application
+    x:Class="DateCalculator.WinUI.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:local="using:DateCalculator.WinUI"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    mc:Ignorable="d">
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
+                <!-- Other merged dictionaries here -->
+            </ResourceDictionary.MergedDictionaries>
+            <!-- Other app resources here -->
+            <Color x:Key="Primary">#512BD4</Color>
+
+            <Style TargetType="StackPanel">
+                <Setter Property="Spacing" Value="5 " />
+            </Style>
+
+            <SolidColorBrush
+                x:Key="PrimaryBrush"
+                Color="{StaticResource Primary}" />
+            <SolidColorBrush
+                x:Key="WhiteBrush"
+                Color="White" />
+            <SolidColorBrush
+                x:Key="BlackBrush"
+                Color="Black" />
+
+            <x:Double x:Key="AppFontSize">14</x:Double>
+
+            <Style
+                x:Key="MyLabel"
+                TargetType="TextBlock">
+                <Setter Property="Foreground" Value="{StaticResource PrimaryBrush}" />
+            </Style>
+
+            <Style
+                x:Key="Action"
+                TargetType="Button">
+                <Setter Property="FontSize" Value="{StaticResource AppFontSize}" />
+                <Setter Property="Padding" Value="14,10" />
+            </Style>
+
+            <Style
+                x:Key="PrimaryAction"
+                BasedOn="{StaticResource Action}"
+                TargetType="Button">
+                <Setter Property="Background" Value="{StaticResource PrimaryBrush}" />
+                <Setter Property="CornerRadius" Value="8" />
+                <Setter Property="Foreground" Value="{StaticResource WhiteBrush}" />
+            </Style>
+
+            <Style
+                x:Key="Caption"
+                TargetType="TextBlock">
+
+            </Style>
+
+            <Style
+                x:Key="BoldText"
+                TargetType="TextBlock">
+                <Setter Property="FontWeight" Value="SemiBold" />
+            </Style>
+        </ResourceDictionary>
+    </Application.Resources>
+</Application>

src/NET_8/DateCalculator/DateCalculator.WinUI/App.xaml.cs

@@ -0,0 +1,30 @@
+namespace DateCalculator.WinUI
+{
+    /// <summary>
+    /// Provides application-specific behavior to supplement the default Application class.
+    /// </summary>
+    public partial class App : Application
+    {
+        /// <summary>
+        /// Initializes the singleton application object.  This is the first line of authored code
+        /// executed, and as such is the logical equivalent of main() or WinMain().
+        /// </summary>
+        public App()
+        {
+            this.InitializeComponent();
+        }
+
+        /// <summary>
+        /// Invoked when the application is launched normally by the end user.  Other entry points
+        /// will be used such as when the application is launched to open a specific file.
+        /// </summary>
+        /// <param name="args">Details about the launch request and process.</param>
+        protected override void OnLaunched(LaunchActivatedEventArgs args)
+        {
+            m_window = new MainWindow();
+            m_window?.Activate();
+        }
+
+        private Window? m_window;
+    }
+}

src/NET_8/DateCalculator/DateCalculator.WinUI/Converters/BoolToVisibilityConverter.cs

@@ -0,0 +1,11 @@
+namespace DateCalculator.WinUI.Converters
+{
+    public class BoolToVisibilityConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, string language)
+            => (bool)value ? Visibility.Visible : Visibility.Collapsed;
+
+        public object ConvertBack(object value, Type targetType, object parameter, string language)
+            => value is Visibility visibility && visibility == Visibility.Visible;
+    }
+}

src/NET_8/DateCalculator/DateCalculator.WinUI/Converters/InvertedBoolConverter.cs

@@ -0,0 +1,10 @@
+namespace DateCalculator.WinUI.Converters
+{
+    public class InvertedBoolConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, string language)
+            => !(bool)value;
+        public object ConvertBack(object value, Type targetType, object parameter, string language)
+            => !(bool)value;
+    }
+}